<?php
/*******************************************************************************

    Copyright 2012 Whole Foods Co-op

    This file is part of CORE-POS.

    IT CORE is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    IT CORE is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    in the file license.txt along with IT CORE; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*********************************************************************************/

namespace COREPOS\Fannie\API\webservices;

class FannieWebService 
{
    
    public $type = 'json'; // json/plain by default

    /**
      constructor will run the webservice automatically
    */
    public function __construct()
    {
        $info = new \ReflectionClass($this);
        if (basename($_SERVER['PHP_SELF']) == basename($info->getFileName())) {
            $output = $this->run();
            $render_func = 'render'.ucfirst(strtolower($this->type));
            if (method_exists($this, $render_func)) {
                echo $this->$render_func($output);
            } else {
                echo $this->renderPlain($output);
            }
        }
    }

    /**
      Do whatever the service is supposed to do.
      Should override this.
      @param $args array of data
      @return an array of data
    */
    public function run($args=array())
    {
        return array();
    }

    /**
      Create JSON representation of array
      @param $arr an array
      @return JSON string
    */
    protected function renderJson($arr)
    {
        return json_encode($arr);
    }
    
    /**
      Simple render concatenate array to string
      @param $arr an array
      @return string
    */
    protected function renderPlain($arr)
    {
        return array_reduce($arr, function($carry, $item){ return $carry . $item; }, '');
    }
}


